1. Phenikaa University Nano Institute, Phenikaa University, Ha Dong, Hanoi, 12116, Viet Nam
2. Faculty of Physics, Hanoi National University of Education, 136 Xuan Thuy Road, Cau Giay, Hanoi, 11310, Viet Nam
3. Department of Materials Science and Engineering, National Cheng Kung University, 1 University Road, Tainan, 70101, Taiwan
4. Faculty of Physics, VNU University of Science, Vietnam National University, 334 Nguyen Trai, Thanh Xuan, Hanoi, 11416, Viet Nam
5. Faculty of Engineering Physics and Nanotechnology, VNU University of Engineering and Technology, Vietnam National University, 144 Xuan Thuy Road, Cau Giay, Hanoi, 11310, Viet Nam